So to clarify, you realize that's what the saying means and yet you posted to complain about its usage when the meaning is perfectly clear. OK.
Using a widely-understood word or phrase to express an idea concisely is sort of the basis of language. Most people prefer a terse expression over "plain English" several times the length.
Refusing to settle for anything short of perfect is often a bad trait, sure.
But if you don't have a "perfect" goal to aim for, what you end up with is going to be worse than it could have been.